<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <link rel="icon" href="favicon.ico" type="image/x-icon" />
    <title>Document</title>
    <style>
        body {
            margin: 0;
            padding: 0
        }
        
        .chunk {
            width: 90%;
            min-width: 300px;
            height: 400px;
            margin: 100px auto;
            background-color: #a9a9a9;
            /* position: relative; */
        }
        
        .list {
            width: 100px;
            height: 120px;
            box-shadow: 1px 4px 10px 2px #747981;
            background-color: #fff;
            position: absolute;
            left: 20px;
            margin: 0;
            padding-left: 30px;
            display: none;
        }
        
        .list li {
            line-height: 30px;
            list-style: none;
        }
    </style>
</head>

<body>
    <div class='chunk'>
        <ul class='list'>
            <li>MEUA1</li>
            <li>MEUA2</li>
            <li>MEUA3</li>
            <li>MEUA4</li>
        </ul>
    </div>
    <script src='ife7.js'></script>
</body>

</html>